Yukon's chief medical officer of health Brendan Hanley says there hasn't been a measles outbreak in Yukon in memorable history, while N.W.T. chief medical officer of health Andre Corriveau says measles hasn't been reported in the Northwest Territories since 1992.

"It's still a low risk for us," Corriveau says. "If you have children and go to spend the weekend in Edmonton at the West Edmonton Mall, the chance of being exposed is still fairly low. At this point there's no need to worry although we need to stay vigilant."

Corriveau is reminding parents check their child's immunization schedule to make sure it's up to date. The measles, mumps and rubella immunization or MMR requires two shots of the vaccine, once at the age of 12 months and again at 18 months.

He says immunization rates are high in the Northwest Territories, at more than 90 per cent.

For the measles, mumps and rubella vaccination, people in the N.W.T. can go to the public health units or their community health centre.